Answer:
c and d
Step-by-step explanation:
Area of Circle=
=
x
= 490.87
Area of Oven tray= 60cm x 50cm
= 3000
: . # tin that can hold on bake tray= 3000
/ <span>490.87
= 6.11
Thus making it logically 6..... </span>
Answer:
90 liters
Step-by-step explanation:
please mark me as brainlest
Answer:
z= 3.63
z for significance level = 0.05 is ± 1.645
Step-by-step explanation:
Here p = 42% = 0.42
n= 500
We formulate our null and alternative hypotheses as
H0: p= 0.42 against Ha : p> 0.42 One tailed test
From this we can find q which is equal to 1-p= 1-0.42 = 0.58
Taking p`= 0.5
Now using the z test
z= p`- p/ √p(1-p)/n
Putting the values
z= 0.5- 0.42/ √0.42*0.58/500
z= 0.5- 0.42/ 0.0220
z= 3.63
For one tailed test the value of z for significance level = 0.05 is ± 1.645
Since the calculated value does not fall in the critical region we reject our null hypothesis and accept the alternative hypothesis that more than 42% people owned cats.
